}
switch ($p) {
case 1:
break;
case 89:
$total++;
$x[] = $n;
return $total;
break;
default:
echo "error!";
break;
}
//print_r($x);
}
$max = pow(9, 2) * 7;
$limit = 10000000;
$total = 0;
$x = array();
for ($i = 1; $i <= $limit; $i++) {
$sum = square_chain($i, $total, $x);
}
echo "Sum is {$total}";
//////////////////////////////////////////////////////////////////////
// End of execution time calculation
$time_end = microtime(true);
$execution_time = $time_end - $time_start;
//total execution time
/////////////////////////////////////////////////////////////////////
//Below Outputs the execution time in seconds
echo '<br /><br /><b>Total Execution Time:</b> ' . $execution_time . ' seconds';
$count = count($digits);
$sum = 0;
for ($i = 0; $i < $count; $i++) {
$sum += pow($digits[$i], 2);
}
$n = $sum;
}
if ($n == 89) {
//$list[]= $q;
//$list[]= strrev($q);
$total += 1;
return $total;
} elseif ($n == 1) {
return $total;
}
}
$limit = 10000000;
$total = 0;
for ($i = 1; $i < $limit; $i++) {
square_chain($i, $total);
}
//print_r($list);
echo "Total is {$total}";
//////////////////////////////////////////////////////////////////////
// End of execution time calculation
$time_end = microtime(true);
$execution_time = $time_end - $time_start;
//total execution time
/////////////////////////////////////////////////////////////////////
//Below Outputs the execution time in seconds
echo '<br /><br /><b>Total Execution Time:</b> ' . $execution_time . ' seconds';
